class CreateMaterialsRestrictions < ActiveRecord::Migration
   def self.up
#	execute "ALTER TABLE materials ADD CONSTRAINT fk_material_types FOREIGN KEY (material_type_id) REFERENCES material_types(id)"
#	execute "ALTER TABLE materials ADD CONSTRAINT fk_currencies FOREIGN KEY (currency_id) REFERENCES currencies(id)"
  end

  def self.down
#	execute "ALTER TABLE materials DROP CONSTRAINT fk_material_types"
#	execute "ALTER TABLE materials DROP CONSTRAINT fk_currencies"
  end
end
